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Unformatted text preview: moved into the cytosol for use, and non-digested materials are formed into a waste vacuole that is removed from the cell by a more-or-less reverse process to the initial engulfing. Paramecium Food Vacuoles Chilodinella Food Vacuoles filled with carmine-dyed yeast containing Diatoms Contractile Vacuoles Most terrestrial organisms risk dehydration, evaporating water to their surroundings. In contrast, fresh water organisms are in an environment where water tends to move into their cells. Many fresh water protists have contractile vacuoles, structures that collect the water moving into their cell from the environment, and periodically expel the collected water to the external environment by contracting the vacuole though a pore, hence the name, contractile vacuole....
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This note was uploaded on 12/29/2011 for the course BIO 151 taught by Professor Edwards during the Spring '10 term at SUNY Stony Brook.
- Spring '10